Microsoft SQL Server, Oracle, MySQL, and numerous other RDMS work very differently than a Microsoft Access database. You do not need to compromise a server's security when using one of the database servers listed above. One can not say the same thing about a file-based database, such as Access.
When statistics show that the majority of security problems arise from company employees, not external sources, one might not look at things with the same opinion as you do. Something to think about.